Home / 1,028,661.83-1,543,239.08-429,289.57

Finding the Fourth Proportional to 1,028,661.83, 1,543,239.08 and 429,289.57

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Solution

The fourth proportional to 1,028,661.83, 1,543,239.08 and 429,289.57 is: 644,037.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,661.83 : 1,543,239.08 = 429,289.57 : x
  2. Step 2: Convert to fraction form
    1,028,661.83/1,543,239.08 = 429,289.57/x
  3. Step 3: Cross multiply
    1,028,661.83x = 1,543,239.08 × 429,289.57
  4. Step 4: Simplify right side
    1,028,661.83x = 662,496,444,867.59
  5. Step 5: Solve for x
    x = 662,496,444,867.59/1,028,661.83
  6. Step 6: Final answer
    x = 644,037.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.